Tires were 31 x 10.50 x 15. (after-market rims) Not a bad thing to say about these. I had 1 wear out prematurely, but it was due to worn steering mechanicals. They survived a "Noreaster" in WV. 42 inches of snow in 3 days. Plows were stuck, but I kept going. The company I work for closed the doors for 2 days. The only reason I know... I was the ONLY person to make it in. During the torrential rains the following spring, there were little Honda cars with their rubber band tires hydroplaning into the guard rails. I was crusin' 70 MPH in the left lane with no worries. Looking to get a set for my "new" '98 Dakota.